Machine for dressing hoops



UNITED sTATEs ETENT oEErcE.

AUGUSTUS PRENATT, OF BUFFALO, NEIV YORK.

MACHINE FOR DRESSING HOOPS.

Specification of Letters Patent No.

To all whom it may concern:

Be it known that I, AUGUSTUS PRENATT, of the city of Buffalo, in thecounty of Erie and State of New York, have invented certain new anduseful Improvements in Hoop- Dressing Machines; and I do hereby declarethat the following is a full and exact description thereof, referencebeing had to the accompanying drawings and the letters of referencemarked thereon.

The nature of my invention relates, 1st, to the position .of thecutters, in the cut-ter head, in reference to their axis of motion, andtheir consequent action upon the hoop to be dressed; which position maybe dened as follows, viz: Placing the cutters in the cutter head, insuch position that the plane of their cutting edge will cross their axisof motion at an angle of forty live degrees, (or nearly so), and alsostand inclined to the horizontal plane of their axis, at an angle offorty tive degrees, (or nearly so) 2d, in the arrangement of a cutter ina vertically moving frame or gate for the purposeof dressingthe edge ofthe hoop, and for giving the hoop any required width.

Figure I, is a top plan view of my machine. Fig. II, is a side elevationof the same. Fig. III, is an elevation of the vertically moving gate,which supports the cutter, for dressing the edge of the hoop.

Letters of like name and kind refer to like parts in each of thefigures.

A, pla-te, which supports the upper portions of the mechanism. Thisplate is bolted to the main frame; B, cutter head.

O, cutter. This is bolted or made fast to the cutter head and is soplaced therein, as that the plane of its cutting edge will cross itsaxis of motion at an angle of forty five degrees, and its plane alsoinclines toward its axis of motion at an angle of forty ve degrees ornearly so. This posit-ion of the cutter in connection'with the directionof the hoop as it is fed to the cutters insures a uniform drawing cutthrough its whole line of operation. There are three cutters in thecutter head.

D, fence or guide. This is made fast to the plate (A). It serves thepurpose of warding off the hoop from the cutter head and prevents thehoop from being crowded on to the cutters in consequence of knots orother irregularities, upon its outside. This 22,581, dated January 11,1859.

fence may also be made adjustable so as to allow hoops to be dressedfrom crooked timber and of different thicknesses, as circumstances mayrequire.

E, guide roller. This is covered with gutta percha or india rubber, sothat in case there are knots or other irregularities in the hoop to bedressed the gutta percha will yield to the knots and thus insure an evensurface on the dressed side of the hoop. The fence (D) being fixed inits position it prevents the gage roller from crowding the hoop too muchon to the cutter head, and hence the gutta percha must yield to theknots. By this arrangement a hoop may be dressed to a uniform thickness,notwithstanding the irregularities on its outside surface.

F, vertically moving frame or gate, which supports the cutter fordressing the edge of the hoop; G, cutter.

II, adjustable roller which rolls on the undressed edge of the hoop, asthe hoop passes through the machine. If the hoop is crooked on its upperedge, it will cause the gate to rise and fall in conformity therewith,and the cut-ter being fixed in the gate, will at all times beequidistant from the roller, the hoop will be dressed to an equal width;I, spring guide; J, J, feed rollers; K, spring roller under which thehoop passes before it is taken by the feed rollers; L, L, feed rollers;P, Q., Il, band and .pulley for driving the cutters; S, T, U,bandandwpully for driving cutter (G) in the vertically moving gate; IV,main shaft on which there is a worm, which meshes in with worm wheels Vand X, and through the series `of gear wheels drives the feed rollers asrepresented in the drawing; Z, lower plate which is bolted to the lowertimbers of the main frame. This plate supports the lower portions of themechanism; X Y, main frame of the machine. The lower ends of the shafts(l, 2,) stand in oscillating boxes.

Power is applied to the machine in a common manner.

Vhat I claim as my invention and desire to secure by letters patent, is-

l. Placing the cutters (O) in the cutter head (B) in such position thatthe plane of their cutting edge will cross their axis of motion at anangle of forty five degrees (or nearly so), and also stand inclined tothe horizontal plane of their axis at an angle of and for giving thehoop any required Width, forty live degrees (or nearly so) sulostan-v asherein described.

tiztlly as set forth. 2. I claim the arrangement of the cutter AUGUSTUSPRENAT' 5 (Gr) in the vertically moving gate (F) (5111 l/Vitnesses:

@hiding the adjustable roller I-L) for the WV. H. FonBUsH,

purpose of dressing the edge oi the hoop, E. B. FoRBUsH.

